//
//  ViewController.swift
//  Performing Tasks After a Delay
//
//  Created by Vandad Nahavandipoor on 7/3/14.
//  Copyright (c) 2014 Pixolity Ltd. All rights reserved.
//
//  These example codes are written for O'Reilly's iOS 8 Swift Programming Cookbook
//  If you use these solutions in your apps, you can give attribution to
//  Vandad Nahavandipoor for his work. Feel free to visit my blog
//  at http://vandadnp.wordpress.com for daily tips and tricks in Swift
//  and Objective-C and various other programming languages.
//  
//  You can purchase "iOS 8 Swift Programming Cookbook" from
//  the following URL:
//  http://shop.oreilly.com/product/0636920034254.do
//
//  If you have any questions, you can contact me directly
//  at vandad.np@gmail.com
//  Similarly, if you find an error in these sample codes, simply
//  report them to O'Reilly at the following URL:
//  http://www.oreilly.com/catalog/errata.csp?isbn=0636920034254

import UIKit

class ViewController: UIViewController {
  
  override func viewDidLoad() {
    super.viewDidLoad()
    
    let delayInSeconds = 2.0
    
    let delayInNanoSeconds =
    dispatch_time(DISPATCH_TIME_NOW,
      Int64(delayInSeconds * Double(NSEC_PER_SEC)))
    
    let concurrentQueue =
    dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
    
    dispatch_after(delayInNanoSeconds, concurrentQueue, {
      /* Perform your operations here */
      })
    
  }
  
}

